Scanner



FIG. 1 is a front view of a scanner;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a left-side view thereof; and,

FIG. 7 is a perspective view thereof.

The broken line showing defines the bounds of the claimed design but does not form part of the claimed design. 

The ornamental design for a scanner, as shown and described. 